어려움을

difficulty

→ 어려움
phrase Rare #24,314
difficulty This is 어려움 (difficulty) with the object marker 을. It commonly appears with verbs meaning “experience” or “overcome.”
KO: 저는 운전하는 데 어려움을 겪고 있어요.
EN: I'm having difficulty driving.

네가 톰을 도와주지 않는다면 톰은 어려움을 겪을 거 야.

If you don't help Tom, he'll have a hard time.